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Yup. I have the same issue. I open VNA View program, connect with that, then close that and VNA Saver will now load, connect and stay alive. Another guy said to pause scans on the nanoVNA before

Hi Roger, I have connected to it and even uploaded the firmware, and all seems to work OK. But when I turn the unit back on, just the normal screen with no sweep happening. Cheers, Peter - VK2AN

I also just downloaded V5.5 64 bit running on windows 10 and get the same results as previously reported. The Nanovna is discovered, it connects and a few seconds later shuts down. Bob W

It sounds like the Si5351 approach may indeed be advantageous over linear sweep via ramping a VCO if it allow interesting nonlinear sweeps to be experimented with (including solutions to range

I have just bought one of the 6Ghz ones I needed something to test the YIG in my faulty 6Ghz VNA, It was around AUD$300. They can be bought on Amazon and Ebay. Initial impressions - Cons- 1. I nearly

There is a nice review/write up and suggestions for future development of the low cost vna. This paper appears in the IEEE Microwave Magazine for this month of April, 2023. An excerpt here attached.

Try plugging it into a PC and see if it works with any of the Nano programs. Roger

Well guys, it appears that my Nano VNA H4 has permanently died. There is a screen display but no evidence of any signal or sweep happening. It did this once before a few weeks ago, and I fixed it by

Actually, not the magnitude and phase, but the real and imaginary parts of the S11. You can display Re and Im. It creates an audio tone at 5kHz, which can then be sampled by audio ADCs, and you do

Be careful about buying one via eBay. There have not been any reports of the Ultra being cloned yet but it is inevitable and the clones are inferior. You can find a list of authorized sellers here:

hello, yes ,I have purchased one . Try to make a desktop with the TinySA ultra Pierre Sohl Belgium Europe

My nanoVNA is a V2Plus4. Savers sees it as NanoVNA-V2, with a FW version 1.0.2 This USED to work just fine. Windows update? nanoVNA setting? Connect to nanoVNA Setup the Sweep Parameters with a single

TY. I did not know. Should have checked.

Gotcha, I think I understand the difference in the two approaches better now. Did you mean the magnitude and phase data over the sweep is inverse FFT'd? And is there a "format" in the menu that plots

I have a NanoVNA-H which has developed a behaviour I've not seen described elsewhere - all screenshot attempts give a "Fail write" error, but other write operations are OK. I'd been through multiple

Thank you!

Thanks so much, Doug.? I have learned so much from this group.? I have successfully created three profiles for hf, vhf and uhf scans and all show up in the recall list. Thanks again, guys.73, Bob,

The Nano can save 6 different "measurement profiles" in its 'profile slots'. When you power ON, it always loads the profile in Slot 0. Then you can use the menu to load a different profile. (You [we]

Thanks, Stan and Clyde.? Yes, after I enabled the scale, I went back to Config Save and that did the trick.? Many thanks to both of you for your assistance. 73, Bob, KN4HH

Trace, scale settings stored in calibration slot. Before calibration set all settings, made calibration and save in slot. By default at power on Nano load 0 slot.